Chau Vo / mbed-dev

mbed library sources. Supersedes mbed-src. RTC working even after reset

Fork of mbed-dev by mbed official

hal/gpio_api.h@148:161ebc35dc3a, 2016-09-28 (annotated)

Committer:
olympux
Date:
Wed Sep 28 20:59:47 2016 +0000
Revision:
148:161ebc35dc3a
Parent:
144:ef7eb2e8f9f7 
RTC working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #ifndef MBED_GPIO_API_H
<> 144:ef7eb2e8f9f7 17 #define MBED_GPIO_API_H
<> 144:ef7eb2e8f9f7 18
<> 144:ef7eb2e8f9f7 19 #include <stdint.h>
<> 144:ef7eb2e8f9f7 20 #include "device.h"
<> 144:ef7eb2e8f9f7 21
<> 144:ef7eb2e8f9f7 22 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 23 extern "C" {
<> 144:ef7eb2e8f9f7 24 #endif
<> 144:ef7eb2e8f9f7 25
<> 144:ef7eb2e8f9f7 26 /**
<> 144:ef7eb2e8f9f7 27 * \defgroup hal_gpio GPIO HAL functions
<> 144:ef7eb2e8f9f7 28 * @{
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 /** Set the given pin as GPIO
<> 144:ef7eb2e8f9f7 32 *
<> 144:ef7eb2e8f9f7 33 * @param pin The pin to be set as GPIO
<> 144:ef7eb2e8f9f7 34 * @return The GPIO port mask for this pin
<> 144:ef7eb2e8f9f7 35 **/
<> 144:ef7eb2e8f9f7 36 uint32_t gpio_set(PinName pin);
<> 144:ef7eb2e8f9f7 37 /* Checks if gpio object is connected (pin was not initialized with NC)
<> 144:ef7eb2e8f9f7 38 * @param pin The pin to be set as GPIO
<> 144:ef7eb2e8f9f7 39 * @return 0 if port is initialized with NC
<> 144:ef7eb2e8f9f7 40 **/
<> 144:ef7eb2e8f9f7 41 int gpio_is_connected(const gpio_t *obj);
<> 144:ef7eb2e8f9f7 42
<> 144:ef7eb2e8f9f7 43 /** Initialize the GPIO pin
<> 144:ef7eb2e8f9f7 44 *
<> 144:ef7eb2e8f9f7 45 * @param obj The GPIO object to initialize
<> 144:ef7eb2e8f9f7 46 * @param pin The GPIO pin to initialize
<> 144:ef7eb2e8f9f7 47 */
<> 144:ef7eb2e8f9f7 48 void gpio_init(gpio_t *obj, PinName pin);
<> 144:ef7eb2e8f9f7 49
<> 144:ef7eb2e8f9f7 50 /** Set the input pin mode
<> 144:ef7eb2e8f9f7 51 *
<> 144:ef7eb2e8f9f7 52 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 53 * @param mode The pin mode to be set
<> 144:ef7eb2e8f9f7 54 */
<> 144:ef7eb2e8f9f7 55 void gpio_mode(gpio_t *obj, PinMode mode);
<> 144:ef7eb2e8f9f7 56
<> 144:ef7eb2e8f9f7 57 /** Set the pin direction
<> 144:ef7eb2e8f9f7 58 *
<> 144:ef7eb2e8f9f7 59 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 60 * @param direction The pin direction to be set
<> 144:ef7eb2e8f9f7 61 */
<> 144:ef7eb2e8f9f7 62 void gpio_dir(gpio_t *obj, PinDirection direction);
<> 144:ef7eb2e8f9f7 63
<> 144:ef7eb2e8f9f7 64 /** Set the output value
<> 144:ef7eb2e8f9f7 65 *
<> 144:ef7eb2e8f9f7 66 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 67 * @param value The value to be set
<> 144:ef7eb2e8f9f7 68 */
<> 144:ef7eb2e8f9f7 69 void gpio_write(gpio_t *obj, int value);
<> 144:ef7eb2e8f9f7 70
<> 144:ef7eb2e8f9f7 71 /** Read the input value
<> 144:ef7eb2e8f9f7 72 *
<> 144:ef7eb2e8f9f7 73 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 74 * @return An integer value 1 or 0
<> 144:ef7eb2e8f9f7 75 */
<> 144:ef7eb2e8f9f7 76 int gpio_read(gpio_t *obj);
<> 144:ef7eb2e8f9f7 77
<> 144:ef7eb2e8f9f7 78 // the following functions are generic and implemented in the common gpio.c file
<> 144:ef7eb2e8f9f7 79 // TODO: fix, will be moved to the common gpio header file
<> 144:ef7eb2e8f9f7 80
<> 144:ef7eb2e8f9f7 81 /** Init the input pin and set mode to PullDefault
<> 144:ef7eb2e8f9f7 82 *
<> 144:ef7eb2e8f9f7 83 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 84 * @param pin The pin name
<> 144:ef7eb2e8f9f7 85 */
<> 144:ef7eb2e8f9f7 86 void gpio_init_in(gpio_t* gpio, PinName pin);
<> 144:ef7eb2e8f9f7 87
<> 144:ef7eb2e8f9f7 88 /** Init the input pin and set the mode
<> 144:ef7eb2e8f9f7 89 *
<> 144:ef7eb2e8f9f7 90 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 91 * @param pin The pin name
<> 144:ef7eb2e8f9f7 92 * @param mode The pin mode to be set
<> 144:ef7eb2e8f9f7 93 */
<> 144:ef7eb2e8f9f7 94 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode);
<> 144:ef7eb2e8f9f7 95
<> 144:ef7eb2e8f9f7 96 /** Init the output pin as an output, with predefined output value 0
<> 144:ef7eb2e8f9f7 97 *
<> 144:ef7eb2e8f9f7 98 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 99 * @param pin The pin name
<> 144:ef7eb2e8f9f7 100 * @return An integer value 1 or 0
<> 144:ef7eb2e8f9f7 101 */
<> 144:ef7eb2e8f9f7 102 void gpio_init_out(gpio_t* gpio, PinName pin);
<> 144:ef7eb2e8f9f7 103
<> 144:ef7eb2e8f9f7 104 /** Init the pin as an output and set the output value
<> 144:ef7eb2e8f9f7 105 *
<> 144:ef7eb2e8f9f7 106 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 107 * @param pin The pin name
<> 144:ef7eb2e8f9f7 108 * @param value The value to be set
<> 144:ef7eb2e8f9f7 109 */
<> 144:ef7eb2e8f9f7 110 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value);
<> 144:ef7eb2e8f9f7 111
<> 144:ef7eb2e8f9f7 112 /** Init the pin to be in/out
<> 144:ef7eb2e8f9f7 113 *
<> 144:ef7eb2e8f9f7 114 * @param obj The GPIO object
<> 144:ef7eb2e8f9f7 115 * @param pin The pin name
<> 144:ef7eb2e8f9f7 116 * @param direction The pin direction to be set
<> 144:ef7eb2e8f9f7 117 * @param mode The pin mode to be set
<> 144:ef7eb2e8f9f7 118 * @param value The value to be set for an output pin
<> 144:ef7eb2e8f9f7 119 */
<> 144:ef7eb2e8f9f7 120 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value);
<> 144:ef7eb2e8f9f7 121
<> 144:ef7eb2e8f9f7 122 /**@}*/
<> 144:ef7eb2e8f9f7 123
<> 144:ef7eb2e8f9f7 124 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 125 }
<> 144:ef7eb2e8f9f7 126 #endif
<> 144:ef7eb2e8f9f7 127
<> 144:ef7eb2e8f9f7 128 #endif